call Phil or stop over to the Fastlane and order one for about $375

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1JN0WU5SE1LC0XHH4F&year=1997&make=MB&model=C-230-001&category=All&part=Air+Mass+Meter

Then, using a phillips screw driver as the only require tool, install it yourself in about 15 minutes. Finally, pat yourself on the back for saving $800.